Neodymium ring magnets

  • Material : NdFeB or Neodymium Iron Boron
  • Shape of magnet: Ring
  • Grade of magnet: N45
  • Dimension :OD32 x ID26 x 4mm
  • Tolerance: +/-0.1mm
  • Plating : Nickle coated
  • Operating Temp(Max).: 80℃ (176℉)
  • Maximum Br: 13800Guass
  • Magnetization Direction: Axially Magnetized.
  • Application:Great for hand craft , office and science projects.
  • Other size and grade are available on request
N45 Grade Dia 32 x ID26 x 4mm NdFeB Magnet Ring with Countersunk holes

Grade of Neodymium Magnet 
N33 N35 N38 N40 N42 N45 N48 N50 N52 Working Temp. 80°C (176°F)
33M 35M 38M 40M 42M 45M 48M 50M Working Temp. 100 °C (212°F)
33H 35H 38H 40H 42H 45H 48H 50H Working Temp. 120°C (248°F)
33SH 35SH 38SH 40SH 42SH 45SH Working Temp. 150°C (302°F)
30U 33UH 35UH 38UH 40UH 42UH Working Temp. 180°C (356°F)
30EH 33EH 35EH 38EH 40EH Working Temp. 200°C (392°F)
28AH 30AH 33AH Working Temp. 230° C (446°F)

Dimension range of Disc Magnet
Outer diameter: 2.0mm ~ 200mm
Inner diameter: 2.0mm ~ 80mm
Thickness: 1.0mm ~ 50mm

Tolerance of Neodymium Magnet

Standard tolerance: +/-0.1mm (±0.004” )
Also stricter tolerance are not intended if specifically requested.

Surface coating of Neodymium Magnet

Nickle, Zinc, Ni-Cu-Ni, Silver, Gold, Black or Grey epoxy resin, Passivation, Parylene, Ni+Sn
Also provides special suface Protection to neodymium magnet, Iron cover, Plastic coated,
Rubber coated

Packaging and Delivery
Packaging: Neutral box packaging, inner box, foam inside and other protection, to security
safely of transportation.
Delivery time: 8 ~ 20days, depend on customer's order quantity.

How to order

1. Type of magnet and Grade
2. Shape and dimenion of Magnet
  If possible, it's better to send us a drawing or sketches.
3. Tolerance of Magnet
4. Quantity
5. Direction of Magnetization
6. Surface coating (if any)
7. In case, you have no idea about the grade and surface coating, Please tell us the following information:
 7-1. What's the product used for ?
7-2. Operating temperature and environment (dry. Humit, salt or others )

More Useful Information the For, Please Feel as Free to contac US: sales@ Senmagnetics.com